Recovering multiplexing loss through successive relaying using repetition coding

Yijia Fan, Chao Wang, John Thompson, H. Vincent Poor

Research output: Contribution to journalArticle

215 Scopus citations

Abstract

In this paper, a transmission protocol is studied for a two relay wireless network in which simple repetition coding is applied at the relays. Information-theoretic achievable rates for this transmission scheme are given, and a space-time V-BLAST signalling and detection method that can approach them is developed. It is shown through the diversity multiplexing tradeoff analysis that this transmission scheme can recover the multiplexing loss of the half-duplex relay network, while retaining some diversity gain. This scheme is also compared with conventional transmission protocols that exploit only the diversity of the network at the cost of a multiplexing loss. It is shown that the new transmission protocol offers significant performance advantages over conventional protocols, especially when the interference between the two relays is sufficiently strong.

Original languageEnglish (US)
Pages (from-to)4484-4493
Number of pages10
JournalIEEE Transactions on Wireless Communications
Volume6
Issue number12
DOIs
StatePublished - Dec 1 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Keywords

  • Capacity
  • Cooperative diversity
  • Multiple-input multiple-output (MIMO)
  • Relay
  • Wireless networks

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